Pillar-crane



(No Model.) 3 Sheets-Sheet 1.v

W. H; MORGAN.

PILLAR CRANE.

.No. 496,433. Patented May 2, 1893.

(No ModeL') 3 Sheets-Sheet 2. W. H. MORGAN. PILLAR CRANE.

No. 496,433. Patented May 2, 1893.

IIIIIII.

Tu: mums m ca, "407mm" wnsvimnmm'g. c.

UNITED ST TEs PATENT OFFICE.

IVILLIAM HENRY MORGAN, OF ALLIANCE, OHIO.

PlLLAR-CRAN E.

SPECIFICATION forming part of Letters Patent No. 496,433, dated May2,1893.

Application filed June 13, 1892.

To all whom it may concern.-

Be it known that I, IVILLIAM HENRY MOR- GAN, of Alliance, in the countyof Stark and State of Ohio, have invented certain new and usefulImprovements in Pillar-Cranes; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to animprovement in jib cranes, and it consists inthe parts and combinations of parts as will be more fully described andpointed out in the claims.

In the accompanying drawings, Figure'l is a view inside elevation ofmyimproved crane. Fig. 2 is a View in vertical section through the upperend of the post and the cap thereon. Fig. 3 is a View in perspective ofthe saddle to which the lower end of the jib is attached. Figs. 4 and 5are views in vertical section through the contact box and Fig. 6 is aview in horizontal section through same.

A represents a metal post preferably of double conical form, provided atthe bases of the cones with a base or flange a having a flat under sideand provided with a series of bolt holes I) for a purpose to behereinafter described.

In the drawings the base a is shown about midway the length of the post,but I do not propose to limit myself to such location as it will bevaried according to circumstances. That portion a of the post A belowthe flange a is adapted to be embedded in a concrete, masonry or otherfoundation, with the flange a resting solidly on said foundation, and isprovided at its extreme lower end with an enlarged foot or anchor cl andat its upper end with a series of wings or flanges c the latter beingintegral with the flange a and section 0 of the post. This foot 01 andthe flanges 6 being firmly embedded in the foundation hold the post orstandard A solidly in position and prevents any tendency to turn.

Passing through the bolt holes I), which by the way are located atsuitable intervals apart near the edge of the flange are the bolts 0.-These bolts 0 are secured to the anchor plates D embedded in thefoundation or located below and in contact with the under side of thefoundation, and pass upwardly through said foundation and into orthrough the holes 12.

Serial No. 486,566. (No model.)

By securing nuts f to the upper ends of these bolts (3, the flange a isfirmly locked thereto, thus relieving the section 0 of the post orstandard A of considerable strain which would otherwise fall thereon.

The section g of the post or standard A, is provided near its bottomwith a ring like bearing surface g which latter is perfectly smooth andis in a plane slightly outside of the plane of the post or standard, andat its upper end witha flat bearing surface It, the lower bearingsurface g being for the saddle E carried by the lower end of the jib F,while the upper bearing surface it is for the cap G. The saddle E iscurved in the arc of a circle concentric with bearing g, and isconnected at its ends to the ends of the beams constituting the jib F.This saddle rests between the beams and is provided on its inner orconcave face with a series of rollers G2 which latter rest against andmove in contact with the hearing g. The cap G fits over the upper I endof post A, and is provided with the convex bearing shoe which latterrests on the concave seat 2' on the upper end of the post A,

and with a series of rollers j which latter rest in contact with thebearing h. This cap is free to revolve on the post and carries andsupports the jib by the stay rods I and J.

The rods I are secured at their inner ends to trunnions or bolts iscarried by or secured to the cap G on opposite sides thereof, and attheir outer ends are secured to the outerfree ends of the jib F. Therods J, are also secured at their upper ends to the trunnions or bolts kon opposite sides of the cap G, and are secured at their lower ends tothe inner end of the jib, and support the latter in position to bringthe rollers carried by the saddle E in contact with the bearing g. Bythus suspend- 1 ing the jib by means of'the rods I and J, and

connecting the latter to the cap it will be seen that the jib is free toswing in any direction around the post, the latter remaining stationary.

te r meshes with toothed wheel 6 fast to the wmdlng drum 7. The liftingchain 8 is socured at one end to this drum and passes from there overpulley 9, through block 10 up to link 11 where it is secured. By meansof the motor any load within the capacity of the crane can be elevated,held in an elevated posltlon and lowered at the will of the operator.

Secured to the top of the cap G so as to move or revolve therewith isthe contact box Ii preferably made of wood and carrying the contactholders L. These holders L are secured to the inner face of the box indifferent horizontal planes as shown, and each carries a carbon or othercontact m held in yielding contact with the copper strips to behereinafter referred to, by the springs m. The contacts m, are connectedby wires (not shown) to the motor, and as before stated are held solidlyagainst the copper strips n. The strips 02 are secured to the pole O indifferent horizontal planes, and are connected to the main conductor 0by wires which preferably pass through the pole, the main conductor 0'being secured to the insulators 0 carried by the pole. The portion ofthe pole within the box L is enlarged as shown, and the lower endthereof rests on the cap G. This pole remains stationary while the boxcarrying the contacts is turned with the jib, and hence the motor can bethrown into the circuit at any time irrespective of the position of thejib. The box and the contacts therein are protected by the metal hood 0rigidly secured to the pole above the boX and overhanging the sides ofthe latter.

I can obtain with this device the same results by attaching the carbonbrush holders to the pole and the copper rings or straps to the innerface of the housing thus causing the strips or rings to revolve and thebrush holders to remain stationary.

P is the operators platform secured at one edge by the saddle E, and ator nearits opposite edge by the links P' which latter are suspended fromthe trunnions or bolts 70. This platform is designed to carry a cut out,reversing switch and rheostat, or be located within easy reach of suchparts so that the operator standing thereon will have complete controlof the movements of the drum.

It is evident that numerous slight changes might be resorted to in therelative arrangement of parts herein shown without departing from thespirit and scope of my invention. Hence I would have it understood thatI do not restrict myself to the exact construction of parts herein shownand described, but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a jib crane, the combination with a stationary pillar or standard,and a jib hearing against said pillar or standard at or near its baseand attached to said pillar or standard at a point above its base, of anelectric motor on the jib, gearing connecting said motor with thewinding drum, a conductor and sliding contacts between said motor andconductor, substantially as set forth.

2. In a jib crane, the combination with a supporting standard and a capmounted on the upper end thereof, of a jib, stay rods secured to the capand to the jib at or near the outer free end of the latter, stay rods orsup ports connecting the cap and inner end of the jib, a motor carriedby the jib, a Winding drum, gearing controlled by the motor foractuating the winding drum, a conductor, and sliding contacts betweenthe motor and conductor, substantially as set forth.

3. In a jib crane, the combination with a post or standard, and a jibcarrying a drum,

and an electric motor for actuating same, of an electric conductor, apair of stationary contacts, a pair of contacts movable with the jib andconductors connecting said movable contacts and the motor, substantiallyas set forth.

4-. In a jib crane, the combination with a standard and a jib, and amotor and drum carried by said jib, of an electric conductor and slidingcontacts between said conductor and motor, substantially as set forth.

5. In a jib crane the combination with a post or standard an electricconductor, and stationary contacts connected with said conductor, of acap loosely mounted on the post or standard, a box carried by said cap,contacts carried by said box, a jib supported by said cap and electricmotor carried by said jib.

6. Ina jib crane, the combination with a stationary post, and stationarycontacts located above the post, of a movable cap mounted on the postand carrying contacts the latter bearing against the stationarycontacts, a jib, stay rods connecting the jib and capand a motor carriedby the jib, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

\VILLIAM HENRY MORGAN.

Witnesses:

F. E. DUSSEL, H. W. I'IAnnis.

